Checker Phosphate, narrow range HI736 Mini-photometer HANNA

Phosphorus Checker (up to 200 µg/L) HI736 - HANNA The Checker® HC (handheld colorimeter) HI736 is a simple, accurate, and affordable tool for measuring phosphorus in marine systems, including aquariums. Phosphorus is an important parameter to measure in aquaculture and aquariums; excessively high levels can lead to excessive algae growth, deplete dissolved oxygen levels, and ultimately be fatal for many types of fish and aquatic organisms.